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TM 5-4320-306-24
3-18. REPAIR ALTERNATOR, V-BELT PULLEY, AND FAN (Continued)
c.
Connect the multimeter test probes to each of the following pairs of test points.
Point A to Point A
Point B to Point B
Point C to Point C
d.
The test should indicate a resistance of 1.0 ohm between each of the three pairs of test points. If any one
test fails, replace the stator.
3
Test brush assembly (1) using a multimeter set
to ohms.
a.
Connect the multimeter between each of
the following pairs of points.
Brush (2) and terminal (3)
Brush (4) and holder (5)
b.
There should be continuity between both
pairs of points.
c.
Connect the multimeter between each of
the following pairs of points.
Brush (2) and holder (5)
Terminal (3) and holder (5)
d.
There
should
be
infinite
resistance
between both pairs of points. If any one
test fails, replace brush assembly.
4
Test rotor using a multimeter set to ohms.
a.
Place test leads across the slip rings. Resistance should read between 11 to 14 ohms.
b.
Place one test lead to a slip ring and the other to the rotor body. Resistance should read infinite.
c.
Place one test lead on other slip ring and second test lead to rotor body. Resistance should read infinite.
d.
If any one test fails, replace rotor.
3-92
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